Storm window structure



April 3, 1956 c. L. WEBSTER STORM WINDOW STRUCTURE Filed April 27, 1955ATTORNEY m R mB w m. mL D R O F F L C I %i e s 4 Wu F United StatesPatent STORM WINDOW STRUCTURE Clifford L. Webster, Philadelphia, Pa.,assignor to Ben Corson Manufacturing Company, Philadelphia, Pa, acorporation of Pennsylvania Application April 27, 1955, Serial No.504,165 1 Claim. (Cl. 20- 55) My invention relates to storm windows, andrelates more particularly to double hung storm window sashes wherein thesash is separable and positively sealed at their meeting rail whenclosed.

Heretofore, it has been found that storm windows suffer their greatestheat loss at the meeting rail between the upper and lower sash. Thisdifiiculty arises because the frames of the individual sash are metal,as for example, aluminum extrusions, and a metal to metal contactwithout gasketing or Weatherstripping means does not alford a seal toinhibit efiiciently heat losses.

It, therefore, is an object of my invention to construct a double-hung,metal, storm window which will be positively sealed at their meetingrail when the sashes are in closed position.

Another object of my invention is to construct a storm window havingseparable sashes which will interlock when closed to provide anintegrally formed meeting rail seal.

Another object of my invention is to construct a storm window havingseparable sashes which will not rattle when in a closed position.

Other objects of my invention are to provide an improved device of thecharacter described, that is easily and economically produced, which issturdy in construction, and which is highly effective in operation.

With the above and related objects in view, my invention consists in thedetails of construction and combination of parts, as will be more fullyunderstood from the following description when read in conjunction withthe accompanying drawing, in which:

Fig. l is a front elevational view of a storm window embodying myinvention.

Fig. 2 is a sectional view taken along lines 22 of Fig. 1.

Fig. 3 is a sectional view taken along lines 3-3 of Fig. 1.

Fig. 4 is a sectional view taken along lines 44 of Fig. l and showingthe interlocking structure of the meeting rail.

Fig. 5 Fig. 1.

Referring now in greater detail to the drawing, in which similarreference characters refer to similar parts, I show a storm windowconstruction comprising a frame,

an upper sash, generally desigis a sectional view taken along lines 5-5of The lower rail of the upper sash B is designated as meet ing rail B1and is provided with an axially disposed acute edge extending the fullwidth of the sash adapted to interfit with a correspondingly shapedV-like groove in the upper rail of the lower sash, designated meetingrail C1. The meeting rail construction will be further describedhereinafter.

The frame A is comprised of a channeled lintel member 12, channeled sidejamb members 14, and a sill member 16, all being formed of extruded orrolled aluminum or like corrosion resistant metal. Any suitable secur-2,740,173 Patented Apr. 3, 1956 ing means, such as screws, may beemployed for anchoring the frame A to the outside of a window frame.

The side jamb members 14 are so formed as to provide a pair of opposedvertically extending channels or guide ways 18 and 20 within which thesash B and C are slideably supported. A channel 22 is formed in thelintel member 12 between an exterior flange 24 and parting strip 26corresponding to channels 18 in the jamb members. The sill member 18 hasa similar channel corresponding to the jamb channel 20 and is formedbetween a trim strip 28 having a stop lip 30 and a downwardly extendingflange member 32. The channel in the sill member communicates with adrip chamber 34 integrally formed in the extrusion.

The upper sash B has a top rail 36 and a pair of side rails 38, eachbeing of identical extruded metal construction, and formed with spacedoutwardly projecting flanges 40 having inturned projections 42 adaptedto be received within the channels 18 and 22 of the side jamb members 14and the lintel member 12. The flanges 40 are connected by an uncinateddiaphragm 44 which serves as a stop for a glass panel 46 and which formsa recess to retain vinyl stripping 48 for maintaining the glass panel inplace against a shoulder 50.

The lower rail of the upper sash, previously designated as meeting railB1, is a metal extrusion essentially H-shaped in cross-section havingspaced downwardly projecting flanges 52 with inturned projections 54.The flanges 52 are connected by an uncinated diaphragm 56 which isgenerally U-shaped in cross-section having a horizontally extending leg58. The upper portion of the an upwardly projecting spear-like edge 60which extends the full width of the sash and is adapted to interfit witha correspondingly shaped V-like groove in the meeting rail C1 of thelower sash.

The lower sash C has a pair of side rails 62, a bottom rail 64, and anupper or meeting rail C1, all being of extruded metal construction. Theside rails 62 are identical in construction to the side rails 38 and thetop rail 36 of the upper sash B.

The meeting rail C1 is essentially H-shaped in crosssection havingupwardly projecting flanges 66 and 68.

extending lip 70, which zontally extending V-shaped groove to wardlyprojecting spear-like edge 60 on B1. An uncinated diaphragm 72 66 and68.

The lower sash, bottom rail 64 has spaced outwardly projecting flanges74 having inturned projections 76 adapted to be received within thechannel formed by the trim strip 28 and flange member 32 of the sill. Anupwardly extending shoulder 78 having a lip 80 serves to retain theglass panel 46 and the edge of the sill member. In addition, the bottomrail has an integrally formed arm 82 which facilitates the raising orlowering of the lower sash C.

As is apparent from the foregoing description, my invention operates asfollows: The upper sash B is slideably supported in channels 18 whereinthe upper rail 36 is firmly engaged between the exterior flange 24 andpartreceive the up the meeting rail connects the flanges the meetingrail B1 of the upper sash B. When the sash C is lowered, the lip 70 ofmeeting rail C1 overhangs the spear-like edge 60 of the upper sashmeeting rail B1, and the of the sash (1) by the spear-like edge of themeeting rail B1 interfitting within the axially extending groove in themeeting rail C1 to form a metal to metal seal, and (2) by the lip 70indenting the stripping 48 to form a metal to vinyl seal.

Although my invention has been described in considerable detail, suchdescription is intended as being illustrative rather than limiting,since the invention may be variously embodied, and the scope of theinvention is to be determined as claimed.

I claim as my invention:

A storm window construction comprising a frame, an upper sash slidablysupported in a channel of said frame, a lower sash slidably supported inan adjacent channel of said frame, each said sash having extruded metalperipheral rails being H-shaped in cross-section and having outwardlyextending flanges connected by an uncinated 4 diaphragm, yinyl strippinginserted within said uncinated diaphragm maintaining glass panelsagainst a shoulder of said rails, the bottom rail of said upper sash andthe upper rail of said lower sash being meeting rails, said lower sashmeeting rail having a downwardly extending lip on one of said outwardlyextending flanges forming with the side of the flange a V-shaped grooveadapted to receive a spear-like edge on the upper portion of said uppersash meeting rail, said lip resiliently indenting said vinyl strippingin said upper sash meeting rail.

References Cited in the file of this patent UNITED STATES PATENTS

